Lock



D: G. HARDY..

LOCK.

APPLICATION FILED mniza, 1920.

1 360,943. Patented Nov. 30, 1920.

2 SHE ETSSHEET I.

D. G. HARDY.

LOCK.

APPLICATION FILED mus, I920.

.0 wa/ m w J k "d M 0 w w 1 n a 7 H w w 06. 6. 6 2,. M z w/ W J l. m 9/ /W a 9 w z 1 m m xx r1 6 v A 0 2 2 UNITED STATES PATENT OFFICE.

DAVID G. HARDY, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF TO J. ELVANS MAYFIELD, OF WASHINGTON, DISTRICT OF COLUMBIA.

LOCK.

T aZZ whom z'tmay concern:

Be it known that I, DAVID G. HARDY, a citizen of the United States, residing at Washington, in the District of Columbia, have invented new and 'useful Improvements in Locks, of which the following is a specification. c

This invention relates to permutation looks and the objects are to provide a lock which consists of relatively few parts which may.

be cheaply manufactured, which cannot be opened except by manipulation of the combination dial, which is so constructed'that the various operating units are secured together, one by the other, and which may be readily dismantled and the combination changed without the use of tools or instruments and in which the new combination may be readily ascertained by the operator.

1 have illustrated oneembodiment of my invention in the accompanying drawings,

wherein:

Figure 1 is a perspective view of my improved lock. V Fig. 2 is a perspective of'the lock dissembled. p I

3 is a vertical section showing parts of my improved lock in closedposition.

Fig. t is a vertical section showing parts of the lock in open position.

Fig. 5 is a transverse vertical section.

Fig. (5 is a horizontal section through the lock body.

Fig. 7 is a perspective view of the tumbler barrel.

Fig. 8 is a rear perspective of the dial and dial spindle.

My lock, one embodiment of whichI have front face to provide a chamberv 2. Aper jf tures 3 are provided through the top face of the lock, these apertures extending downward and communicating with chamber 2, in their adjacency. to said chamber taking the form of recesses The operating mechanism of my lockcomprises a cylindrical barrel 5 having its top a side facecut away, as at 6, and provided with an axial inwardly projecting sleeve 7. The lock body is provided w th a lug 8 projecting from its lower interior face and Specification of Letters Patent. P t t d 30 192 Application filed January as, 1920. serial No. 354,533.

which is adapted tocooperate with a slot 9 formed in the barrel, thus centerin the barrel in position within the body. tumbler disk 10 suitably notched, as at 11, is position ed within the barrel surrounding the sleeve 7, This tumbler disk is formed with a clrcumferential series of apertures 12, one of which apertures is filled with a removable 7 pin 13 adapted to project rearward from the face of the tumbler. A spacing ring 14, preferably of spring metal, is positioned within the barrel, the ends of said spacing ring projecting into grooves 15 formed in the side walls of the barrel. This ring is adapted to bear against the rear side of tumbler disk 10. A second tumbler disk 16 isprovided which likewise has a bearing upon the sleeve 7. This tumbler is provided .with a circumferential series of apertures similar to those in disk 10 and has a pin 17 adapted to extend through one of said apertures and project from both side faces of the tumbler disk. A spacing ring similar to the one heretofore mentioned is mounted back of this second tumbler disk. A dial member 18 having a spindle 19 adapted to project through sleeve 7 of the barrel is proideo, this spindle having a removable crosspin 20 adjacent its free end through means of which it is secured in position in the barrel, the cross-pin bearing upon the inner edge of sleeve 7 and is adapted to actuate a third tumbler disk or dial tumbler 21 centered upon the dial spindle 19. This third tumbler disk or dial tumbler is provided with a central aperture and is recessed, as

. at 22, to take over the pin 20, being secured in'position in the barrel by means of spring washer 23. The outer face of the barrel 5 is formed with a horizontal recess 24, and in this recess are positioned a spring 25 and a small ball 26. The inner face of the dial member is provided with a circumferential series of recesses 27 adapted to cooperate with the spring-pressed ball to produce a clicking sound when the dial is rotated. The dial is provided with the usual radial marking lines upon the front face thereof and has a milled handle 28 of somewhat circular contour, one side being cut away, as at 29, in order to provide a flat portion by means of which the position of the dial relative to the barrel and body of the lock may be determined without the necessity of viewing the markings upon the dial.

,The upper inner wall of the chamber in the body portion is recessed, as indicated at 30, in order to provide a seating for the bolt member which consists of'the body portlon 31, a pivoted dog 32, and a tongue 33. The

bolt member 31 is provided with a spring strip 33 one end of which bears upon dog 32 to, press that member to'operative position with the notched tumbler disks. The barrel portion of the lock is providedfadjacent its open side 6 with a pin 34 which is adapted to cooperate with the pivoted dog 32 to prevent the bolt from being withdrawn until the, shackle in place in the lock body and the shackle has a reduced portion 38 adjacent the'shoulder portion, this flat reduced surface providing means whereby the shackle maybe turned, pulled upward, and disconnected from the lock body. The shackle is provided with theusual locking notch 39.

The outer side wallsof the barrel portion have vertical recesses 40, these recesses-being adapted to cotiperate with the recessed portions l of the body to provide a channel for the reception of the plug member 41, which fits tightly into and is frictionally held in the recess, and the leg end ofthe shackle, and it will be apparent that when these members have been inserted in the lock, that by reason of the provision of the recessed sides of the barrel member, the barrel and dlal will be'securely held 1n place within the lock and cannot be removed until the plug memher and shackle have been withdrawn.

opening 42 extends from the bottom of the lock and is in communication with one of the recesses 4 of the lock body whereby a pin or other instrument may be inserted'to force the plug l1 from the body. I provide a usual spring 43 in one of the recesses 3 which is adapted to force the leg of the shackle upward when the bolt has been removed from engagement with the shackle notch.

The operation of my device is as follows: Upon rotation of the dial, tumbler disk .21

which is keyed to the dial spindle will be oted dog of the bolt. The dial is then turned 7 in-the opposite direction until the second occupied the first, whereupon the rotation is again reversed until the third tumbler has its notched portion inalinement, whereupon the pivoted dog will be forced by ac.' tion of itsspring into engagementwith the notched portions of the tumblers. The dial is thenturned in theopposite direction which tumbler has taken a similar position to that results in thewithdrawal of the bolt'from contact with the shackle. The shacklewill then be forced upward by the action of spring a3 in the usual manner. If it is desired to dismantle the lock'to change the combination,the shackle member is then turned until the free end has swung away from the lock body, whereupon the shackle may be lifted out. A pin or other instrument may then be inserted into opening42 to force the plug member 41 from the body, whereupon the dial and barrel. members may be with drawn from the body of thelock. To change the combination, the spring washers 23 and ll are removed and the pins on the various tumbler disks maybe changed and fitted into any of'th'e different apertures. To ascertain the 'combmationprior to putting the lock togetheragain, the tumbler disks are thenrelaced in osition the sarin washers ina H l 1:

sert ed to hold the parts together, and prior to inserting the barrel and tumbler disks in the lock body, the dial may be rotated until 'the'firsttumbler comes into 'vertical alinement with the cutaway portion of the walls of the barrel, the turning movement of the dlal is then reversed until the second tumbler has taken position, and the movement is re side wall recesses and ahorizontal recess in the upper wall thereof, a slidable bolt in said upper recess, a barrel adapted to fit said chamber, a dial member fitted to said barrel, said "dial JllQIl'lbB]? being provided with a spindle, a plurality oftumbler disks arran'ged-within said barrel,a shackle, and means- Whe e y he th al member is 1' tatejdsaid tumbler fdisks will be turned to operative position relati've'to said bolt.

2,111 a lock, a body portion adapted to provide a chamber for the reception of a tumbler, barrel, a tumbler'barrel having a centrally drilled-chamber and recessed outer sides, asleeVe projecting from the inner side of said barrel, a'dial'face superimposed upon said barrel, a spindle projecting from said dial "face through thesleeve of said barrel,

means whereby when-the dial piece is turned in successively opposite directions the notches of said tumbler disks will be moved into alinement, said body portion being formed with openings through the top part thereof for the reception'of a shackle, said openings, being in communication with recesses in the side walls of said central cham-:

ber, the upper wall of said central chamber being formed with a recess, a bolt in said last-named recess, a spring in one of the side recesses of said central chamber, a cylindrical plug member in the other side recess of said central chamber, said plug member being adapted to project on one side into said central chamber and to cotiperate with one of the recessed sides of said barrel portion to maintain the barrel in position, the leg portion of said shackle member being adapted to rest in-the other recess in the side wall of the central chamber and to cooperate with the other recessed side of the barrel portion to maintain the barrel in position. a

3. A lock comprising a body portion provided with a chamber for the reception of a tumbler barrel, a cylindrical barrel portion positioned in thechamber insaid body portion, a tumblerdisk formed with a plurality of circumferentially arranged holes therethrough and having a removable pin fitted into one of said holes and projecting from one face of the disk, a second tumbler disk formed with a plurality of circumferentially arranged holes therethrough and having a removable pin fitted into one of said holes and projecting from both faces of said disk, a third tumbler disk formed witha plurality of circumferentially arranged holes therethrough and'having a removable pin fitted into one of said holes and project ing from one face of said disk, said tumbler disks being mounted in the barrel portion, means for rotating the last-named tumbler disk whereby the pin projecting from said disk will engage the pin projecting from one face of the second-named tumbler disk to turn said disks into operative relation one to the other, a bolt member positioned in said body portion, and means whereby when the tumbler disks have been turned to assume a predetermined relation, the bolt is withdrawn.

4. In a look, a body portion having a central chamber adapted to receive a tumbler barrel, a shackle operatively disposed relative to said body portion and having its ends housed in said body portion, a sliding bolt adapted to latch one end of said shackle member, a barrel portion formed with vertical recesses in its outer side faces positioned in said body portion, a plurality of notched tumbler disks mounted in said barrel portion, means whereby the rotation of one of said disks will result in rotation of the other disks, the other end of said shackle being adapted to cooperate with one of the recessed sides of said barrel portion to retain the barrel portion and tumbler disks in position in the body portion, and spring washers interposed between each pair of said disks.

5. In a lock, a body portion consisting of a block of metal-having a centrally drilled chamber in its front face, a pair of vertical apertures in the upper face of said block, said apertures communicating with the central chamber and assuming in adjacency thereto the form of recesses, a cylindrical barrel having a cut-away portion in its upper side face positioned in said chamber, said barrel portion being formed with vertical recesses in its outer side walls, a shackle having its ends normally positioned in the apertures of said boclyportion,tumbler disks mounted in said barrel portion, means to actuate said tumbler disks, a sliding bolt positioned in said body portion and adapted I under actuation of said tumbler disks to engage one end of said shackle, a plug member positioned in one of said recesses in the chamber of the body portion, said plug and one end of said shackle cooperating with the recessed portions of said chamber and the recessed sides of said barrel to retain the barrel in position in the body portion.

(3. In a look, a body portion having a chamber adapted to receive a tumbler barrel, a lug in the lower inside wall of said central chamber, a tumbler barrel provided with a groove in the lower outerwall thereof, a plurality of tumbler disks carried by said barrel portion, means to rotate said tumbler disks, a bolt member carried by said body portion and means whereby when said tumbler disks have been turned to proper position, the bolt member is actuated.

7. In a lock, a body portion provided with a chamber for the reception of a tumbler barrel,'a tumbler barrel, a shackle operatively associated with said body portion, a plurality'of notched tumbler disks in said barrel portion, means to rotate said tumbler disks whereby the notched portions may be brought into alinement, a bolt member having a hinged dog slidably mounted in said body portion, a strip spring secured at one end to said bolt member, the free end of said spring bearing upon said hinged dog, said dog being adapted to engage the notched portions of said tumbler. disks when they- "from said dial portion and extending 8; In a lock, a body portion having a central chamber adapted to receive a tumbler barrel, said body portion being provided with a vertical channel through the top vface thereof adapted to receive one end of a shackle, the lower portion of saidchannel taking the form of a recess in the side wall of said central chamber, a second vertical channel through the'top face of said body portion adapted to receive a plug member and the latching end of said shackle, the lower portion of said channel taking the form of a recess in the. side wall ofsaid central chamber, a'shackle, the pivotal endof which is formed with a circumferential shoulder and having its shank cut away on one side adjacent said shoulder to provide a portion having a plane face and of reduced diameter, a pin projecting through said body portion and one side of oneof said vertical channels and adapted to cooperate with said shouldered end to retain the shackle in the'body portion, a bolt provided with a hinged dog slidably mounted in a recess in the upper wall of said central chamber, a barrel portion having a relatively central chamber and an axial sleeve projecting into said chamber, the inner walls of said chamber being formed with horizontal grooves, and the upper wall portions being cut away so as to provide an opening, a plurality of notched tumbler.

disks mounted in said barrel portion, a pin projecting inwardly from said barrel portion in the opening in the upper Walls, said pin being adapted to hold the bolt actuating dog in position in the notches oi said tumbler diskswhile the dial is being turned to release the bolt.

9. In a look, a body portion having a chamber adaptedto receive a tumbler barrel, a shackle operatively disposed relative to said body portion, a bolt slidablymount,- ed in said body portion and adapted to engage one end of said shackle, a barrel portion adapted to tit-into said body portion,

said barrel portion having an inwardly proi j ecting sleeve, notched tumbler disks mounted in said barrel portion on said sleeve, a

dial member superimposed on the outer face of said barrel portion, a spindle projecting through the sleeve of said barrel portion, a dial tumbler having a notch in the periph-' ery thereoi and provided with an axialopemng to take over thedlal spindle, said .body portion, a'plurality oftumbler disks carried by said barrel portion, a shackle member'an d a 11m member ada ted: to be inserted in thebody portion, a bolt member carried by said body portiongand adapted "to be actuated by turning movement of the tumbler disks, the body portion and the barrel portion being so formed that when the shackle member and the plug member areinserted in the body the barrel and dial portions aresecurely held within said body portion. i 1

11. In a lock,.a body portion having a chamber adapted to receive a tumbler bar'- rel, a tumbler'barrel mounted in said central chamber, a shackle and a plug member mounted in said body portion, a sliding bolt 7 operatively disposed in saidbody portion, a

dial member superimposed upon said barrel portion, a spindle pro ecting from said dial member lnto sald barrel port1on,a plurality of tumbler disks mounted in said barrel portion, each of said tumbler disks being provided with a plurality of circumferentially arranged holes thereth-rough., 'a removaiole pm in one of SitlClllOlBSJIl each disk, and means connecting one of said disks to said dial spindle; 7

in testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

' DAVID G. HARDY.

- l'Vitnesses:

CLAUDE D. Knsnnn, BARTON A. BEAN, Jr.- 

